blob: 1466ea6ceff9295a351312d352adb4e0195bbaee (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
function(vcpkg_download_distfile out_var)
cmake_parse_arguments(PARSE_ARGV 1 arg
"SKIP_SHA512;SILENT_EXIT;QUIET;ALWAYS_REDOWNLOAD"
"FILENAME;SHA512"
"URLS;HEADERS"
)
if(NOT DEFINED arg_URLS)
message(FATAL_ERROR "vcpkg_download_distfile requires a URLS argument.")
endif()
if(NOT DEFINED arg_FILENAME)
message(FATAL_ERROR "vcpkg_download_distfile requires a FILENAME argument.")
endif()
if(arg_SILENT_EXIT)
message(WARNING "SILENT_EXIT no longer has any effect. To resolve this warning, remove SILENT_EXIT.")
endif()
# Note that arg_ALWAYS_REDOWNLOAD implies arg_SKIP_SHA512, and NOT arg_SKIP_SHA512 implies NOT arg_ALWAYS_REDOWNLOAD
if(arg_ALWAYS_REDOWNLOAD AND NOT arg_SKIP_SHA512)
message(FATAL_ERROR "ALWAYS_REDOWNLOAD requires SKIP_SHA512")
endif()
if(NOT arg_SKIP_SHA512 AND NOT DEFINED arg_SHA512)
message(FATAL_ERROR "vcpkg_download_distfile requires a SHA512 argument.
If you do not know the SHA512, add it as 'SHA512 0' and retry.")
elseif(arg_SKIP_SHA512 AND DEFINED arg_SHA512)
message(FATAL_ERROR "SHA512 may not be used with SKIP_SHA512.")
endif()
if(_VCPKG_INTERNAL_NO_HASH_CHECK)
set(arg_SKIP_SHA512 1)
endif()
if(NOT arg_SKIP_SHA512)
if("${arg_SHA512}" STREQUAL "0")
string(REPEAT 0 128 arg_SHA512)
else()
string(LENGTH "${arg_SHA512}" arg_SHA512_length)
if(NOT "${arg_SHA512_length}" EQUAL "128" OR NOT "${arg_SHA512}" MATCHES "^[a-zA-Z0-9]*$")
message(FATAL_ERROR "Invalid SHA512: ${arg_SHA512}.
If you do not know the file's SHA512, set this to \"0\".")
endif()
string(TOLOWER "${arg_SHA512}" arg_SHA512)
endif()
endif()
set(downloaded_file_path "${DOWNLOADS}/${arg_FILENAME}")
get_filename_component(directory_component "${arg_FILENAME}" DIRECTORY)
if ("${directory_component}" STREQUAL "")
file(MAKE_DIRECTORY "${DOWNLOADS}")
else()
file(MAKE_DIRECTORY "${DOWNLOADS}/${directory_component}")
endif()
if(EXISTS "${downloaded_file_path}")
if(arg_SKIP_SHA512)
if(NOT arg_ALWAYS_REDOWNLOAD)
if(NOT _VCPKG_INTERNAL_NO_HASH_CHECK)
message(STATUS "Skipping hash check and using cached ${arg_FILENAME}")
endif()
set("${out_var}" "${downloaded_file_path}" PARENT_SCOPE)
return()
endif()
else()
# Note that NOT arg_SKIP_SHA512 implies NOT arg_ALWAYS_REDOWNLOAD
file(SHA512 "${downloaded_file_path}" file_hash)
if("${file_hash}" STREQUAL "${arg_SHA512}")
message(STATUS "Using cached ${arg_FILENAME}")
set("${out_var}" "${downloaded_file_path}" PARENT_SCOPE)
return()
endif()
# The existing file hash mismatches. Perhaps the expected SHA512 changed. Try adding the expected SHA512
# into the file name and try again to hopefully not conflict.
get_filename_component(filename_component "${arg_FILENAME}" NAME_WE)
get_filename_component(extension_component "${arg_FILENAME}" EXT)
string(SUBSTRING "${arg_SHA512}" 0 8 hash)
set(arg_FILENAME "${filename_component}-${hash}${extension_component}")
if (NOT "${directory_component}" STREQUAL "")
set(arg_FILENAME "${directory_component}/${arg_FILENAME}")
endif()
set(downloaded_file_path "${DOWNLOADS}/${arg_FILENAME}")
if(EXISTS "${downloaded_file_path}")
if(_VCPKG_NO_DOWNLOADS)
set(advice_message "note: Downloads are disabled. Please ensure that the expected file is placed at ${downloaded_file_path} and retry.")
else()
set(advice_message "note: You may be able to resolve this failure by redownloading the file. To do so, delete ${downloaded_file_path} and retry.")
endif()
file(SHA512 "${downloaded_file_path}" file_hash)
if("${file_hash}" STREQUAL "${arg_SHA512}")
message(STATUS "Using cached ${arg_FILENAME}")
set("${out_var}" "${downloaded_file_path}" PARENT_SCOPE)
return()
endif()
# Note that the extra leading spaces are here to prevent CMake from badly attempting to wrap this
message(FATAL_ERROR
" ${downloaded_file_path}: error: existing downloaded file had an unexpected hash\n"
" Expected: ${arg_SHA512}\n"
" Actual : ${file_hash}\n"
" ${advice_message}")
endif()
endif()
endif()
# vcpkg_download_distfile_ALWAYS_REDOWNLOAD only triggers when NOT _VCPKG_NO_DOWNLOADS
# this could be de-morgan'd out but it's more clear this way
if(_VCPKG_NO_DOWNLOADS)
message(FATAL_ERROR "Downloads are disabled, but '${downloaded_file_path}' does not exist.")
endif()
vcpkg_list(SET params "x-download" "${arg_FILENAME}")
foreach(url IN LISTS arg_URLS)
vcpkg_list(APPEND params "--url=${url}")
endforeach()
foreach(header IN LISTS arg_HEADERS)
list(APPEND params "--header=${header}")
endforeach()
if(arg_SKIP_SHA512)
vcpkg_list(APPEND params "--skip-sha512")
else()
vcpkg_list(APPEND params "--sha512=${arg_SHA512}")
endif()
# Setting WORKING_DIRECTORY and passing the relative FILENAME allows vcpkg x-download to print
# the full relative path if FILENAME has /s in it.
vcpkg_execute_in_download_mode(COMMAND "$ENV{VCPKG_COMMAND}" ${params} RESULT_VARIABLE error_code WORKING_DIRECTORY "${DOWNLOADS}")
if(NOT "${error_code}" EQUAL "0")
message(FATAL_ERROR "Download failed, halting portfile.")
endif()
set("${out_var}" "${downloaded_file_path}" PARENT_SCOPE)
endfunction()
|
